noun
campaign manager
Used in electoral contexts for the person who oversees and coordinates a political campaign.
彼は市長選の総括主宰者を務めた。
He served as the campaign manager for the mayoral election.
選挙参謀 is a more common term for a campaign strategist or advisor, while 総括主宰者 is a formal, less frequent compound.
Compound of 総括 (general control, summary) + 主宰者 (person in charge, organizer). The exact historical derivation is uncertain; the term is used in formal political contexts.